Figure 5 in The trouble with flippers: a report on the prevalence of digital anomalies in Cetacea

Figure 5. Phalangeal fusion in tracing (A) and radiograph (B) of a common dolphin (Delphinus delphis, USNM 550041). C and D, accessory ossification in a dwarf sperm whale (Kogia sima, USNM 550482). E and F, additional metacarpal ossification centre in an Atlantic spotted dolphin (Stenella frontalis, USNM 504736). G and H, metacarpal–phalangeal and interphalangeal fusion in Gervais' beaked whale (Mesoplodon europeus, USNM 504256). Scale bars: 1 cm. Key: metacarpals, dark grey; phalanges, light grey; cartilages, white; anomalous elements, black.